A tourist poses for a picture along the crater of the Cerro Negro volcano, one of the most active in Nicaragua, before volcano surfing down its slopes in Leon, about 75 milesnorthwest from Managua July 23, 2012.

A tourist poses for a picture along the crater of the Cerro Negro volcano, one of the most active in Nicaragua, before volcano surfing down its slopes in Leon, about 75 milesnorthwest from Managua July 23, 2012. (Oswaldo Rivas / Reuters)